CN101478178B - Method for switching between two standards of transforming plant - Google Patents
Method for switching between two standards of transforming plant Download PDFInfo
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- CN101478178B CN101478178B CN2008102048495A CN200810204849A CN101478178B CN 101478178 B CN101478178 B CN 101478178B CN 2008102048495 A CN2008102048495 A CN 2008102048495A CN 200810204849 A CN200810204849 A CN 200810204849A CN 101478178 B CN101478178 B CN 101478178B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a method for conversion between two standards of a transformer station, which comprises an IEC 61850 object model and an IEC103 information model. The method comprises the following steps: the modeling is respectively performed to the logic node and the data object according to each CPU, and the CPU comprises a first CPU, a second CPU and a third CPU; and the modeling is performed to a logic device, and the modeling is performed to a protective device to form a logic device. The invention converts the traditional 103 device model into a model conforming to the IEC 61850 standard, solves the problem of compatibility between a large quantities of IEC 103-based microcomputer devices in the traditional transformer station and the 61850 system and realizes the transition of the digital transformer station from the traditional transformer station.
Description
Technical field
The present invention relates to the transformer station field, relate in particular in a kind of transformer station based on the conversion method between the information model of the object model of IEC 61850 and IEC103.
Technical background
IEC 60870-5-103 telecontrol equipment and system-continue and protect facility information interface kit standard (103 stipulations).IEC60870-5 series communication protocol system is that the 3rd working group of the 57th technical committee of International Electrotechnical Commission (IEC TC57 WG03) has used a cover of time formulation for many years to be used for the protocol architecture of transformer station's telemechanical communication.Different with traditional telemechanical communication protocol, IEC60870-5 serial protocols system has been used for reference the demixing technology of network communication protocol, agreement is divided into link layer and application layer is two-layer: link layer is described by IEC60870-5-1 IEC60870-5-2; The foundation of application layer is by IEC60870-5-3, and IEC60870-5-4 and IEC60870-5 describe.Network layer, transport layer, session layer, presentation layer are dead level all, and application layer maps directly to link layer.Traditional microcomputer protecting device adopts 103 agreements that self information is carried out modeling and carries out transmission of Information mostly.(Group in 103 Item) carries out the mutual of information by a series of messages and distant place background devices to information in the mode of information point.
OO substation communication network and system-IEC 61850 are the very complicated standards systems of a cover, and being divided into is 10 parts, and substation communication network and system have been made comprehensive, detailed description and standard.The formulation of IEC 61850 has its deep historical reasons, and electric power system is from now on produced significant impact.IEC TC57 working group of International Electrotechnical Commission is responsible for the formulation work of Automation of Electric Systems standard.Along with the transformation on the understanding, and the high speed development of correlation techniques such as computer, integrated circuit, communication, the power automatic system standard that IEC formulates has experienced from data-oriented to OO big development and change several times.
1) data-oriented and point.Initial communication of power system standard all is based on agreement (protocol).Owing to be subjected to the restriction of the communication technology and means at that time, in the standard more focused data be the problem how to transmit.This makes that early stage communication standard all is data-oriented point (for example a certain definite value of protective device or certain action event), but not object-oriented (as protective device).For describing and swap data, a series of messages have been defined in the standard.When between each subsystem with the message being carrier when carrying out exchanges data, the semanteme of data is transmission simultaneously.Such standard comprises telemechanical communication protocol system IEC60870-5 series.
2) equipment oriented and object.Along with power system automation technology develop and implement improving constantly of complexity rapidly, force us to jump out each automation subsystem inside, stand in higher level, investigate and design the border of each information subsystem.In case stand in the angle of system boundary, consider from system integration purpose how in fact the content of information exchange transmitted even more important than data between system.Be based on the recognition, a new generation, OO power automatic system standard successively formulated out, as at the automation of transformation substations
The IEC 61850 of system.The standards system of a new generation has been set up object model, service model and the relation between them that contains electric power system primary system, electrical secondary system and communication system.
3) towards unified object model.
4) realize " world, a kind of standard, a kind of technology ".
Relaying protection in the electric substation automation system should comprise the complete set protection of full transformer station capital equipment and transmission line.Specifically comprise: the 1. master of ultra-high-tension power transmission line, backup protection; 2. the master of main transformer, backup protection; 3. bus protection; 4. the protection of compensation capacitors; 5. the protection of distribution line; 6. small current earthing wire-selecting etc.Relaying protection is the key link of electric substation automation system, and how its function and reliability can influence the performance of whole system to a great extent.
The function of electric substation automation system also comprises the maintenance function of electric substation automation system, i.e. functions such as system configuration, telecommunication management and software administration except controlling, monitor and protecting the 3 big functions.
Adopt electric substation automation system to carry out the devices of separating originally such as control, protection, supervision, communication and measurement integrated with suitable form; by a small amount of multifunctional intellectual electronic equipment (IntelligentElectronic Device; IED) form automated system; realize information sharing by the communication network in standing; signal cable is greatly reduced, and system configuration is simplified.So both improve the economy of system, improved reliability again.Therefore, transformer station is integrated has become the effective way that power industry reduces installation, maintenance and operating cost with automation.
The biggest obstacle that faces in the electric substation automation system integrating process is the IED of different manufacturers, even the communication protocol that adopts of the IED of same producer different model and user interface is inequality, thereby is difficult to realize seamless integrated and interoperability.Because need extra hardware (as protocol converter) and software to realize that IED is interconnected, also to give training the user, this has weakened advantage and the meaning of transformer station's realization automation to a great extent.Therefore electric substation automation system is realizing also should possessing performances such as interoperability, extensibility and high reliability outside the function.This is normally unheeded in network analysis in the past and design process.
Interoperability, namely a plurality of IED of same producer or different manufacturers will have exchange message and use these information to carry out crew-served ability.The interoperability of equipment can be protected the original software and hardware investment of user to greatest extent, realizes that the different manufacturers product is integrated.
Extensibility, this just requires system when design, and software systems and hardware system all adopt modular design method as far as possible, and the convenient following system extension requires communication interface standardization simultaneously, and system has opening.
High reliability, system should have redundancy structure, particularly should have mutually independently redundant configuration as the communication system of system data passage and the master station of man-machine interface.Under failure condition, communication system and the master station of redundancy should carry out hot-swap under the not out-of-work situation of system, carry out corresponding protection and automatic control task with the assurance system.
IEC is in the function that takes into full account above-mentioned electric substation automation system and requirement, particularly on the basis that interoperability requires, formulated communication standard system IEC 61850 standards of communication network and system in the transformer station.It adopts layered distribution type system, OO modeling technique, makes the self-described of data object become possibility, and IED realization interoperability and the seamless integrated approach that provides of system of different vendor is provided.
Along with the formulation of IEC61850 standard and the acceleration of digital transformer substation are implemented, will in electric power system occupy leading position based on the IEC61850 standard device future.But in 61850 standard large-scale promotion, a problem of having to face is that how large quantities of microcomputer devices based on IEC 103 carry out compatible problem with 61850 systems in traditional transformer station.
Summary of the invention
The objective of the invention is to overcome the defective of prior art; and provide conversion method between a kind of two standards of transforming plant; it has solved traditional transformer station based on the mapping of IEC 103 microcomputer protecting device models to IEC 61850 models, realizes that traditional transformer station is to the transition of digital transformer substation.
The technical scheme that realizes above-mentioned purpose is: the conversion method between a kind of two standards of transforming plant, comprise the object model of IEC 61850 and the information model of IEC103, and wherein, it may further comprise the steps:
Logical node and data object are carried out modeling, and by each CPU modeling respectively, CPU is made up of a CPU1, the 2nd CPU2 and the 3rd CPU3;
Logical device is carried out modeling, is a logical device with a protection equipment modeling.
Conversion method between the above-mentioned two standards of transforming plant wherein, describedly carries out comprising the defencive function modeling procedure, that is: in the modeling procedure to logical node and data object
At first at a CPU1 who realizes the carrier current protection function, in IEC 61850, compliance logic node PSCH is used for switching motion information between a plurality of route protections, utilizes PSCH to cooperate the common carrier current protection system that constitutes with other protection logical nodes;
The 2nd CPU2 protects and the reclosing logic in support; adopt the alternate and ground distance protection of syllogic; alternate and each section ground connection all should be modeled as the example of distance protection logical node class PDIS; ground distance can increase prefix " Gnd " to distinguish before object name; and I, II, III section are with suffix sequence number " 1 ", " 2 ", " 3 " expansion; at last; the action command of each protection all exports protection trip condition logical node PTRC to, and finally sends tripping operation " Trip " order by it to circuit breaker XCBR.
Conversion method between the above-mentioned two standards of transforming plant wherein, is describedly carried out in the modeling procedure logical node and data object, also comprises protection correlation function modeling procedure, that is:
At first, self-checking alarming information adopts general input and output logical node GGIO to represent;
Secondly, analog quantity sampling, the sampling of switching value sampling functional simulation amount are modeled as measuring unit logical node MMXU according to IEC 61850-7-4, and the switching value sampling adopts general purpose I/O logical node GGIO to describe;
Again, regard send function on the noisy data as a small-sized oscillograph as, utilize basic record ripple infologic node R DRE, and represent the logical node RADR of each analog quantity record ripple passage, the logical node RBDR that represents each switching value record ripple passage and join together to carry out modeling;
Then, fault localization namely has the fault localization function among the 3rd CPU3, and corresponding logical node is RFLO;
At last; to necessary two the logical node LPHD of each physical equipment and LLN0 modeling; in modeling, regard unit, an interval as a physical equipment; LPHD is used for describing Microcomputer Protection equipment place information at interval; LLN0 is used for describing the information of Microcomputer Protection equipment itself, to distinguish other protection equipment in the same interval.
Conversion method between the above-mentioned two standards of transforming plant wherein, is describedly carried out modeling procedure to logical device and is comprised and create mapping table step and information step of converting, wherein:
Create the mapping table step, adopt the mode of mapping table that IEC103 information point and corresponding IEC61850 object indexing are shone upon, adopt this mapping table that IEC103 is associated by dot information and the corresponding IEC61850 object that GROUP and Item determine, play one-to-one relationship, and adopt the mode of mapping table that IEC103 command message and IEC61850 ACSI service are shone upon, the command message of IEC103 can be converted to corresponding abstract Communications service interface by this mapping table;
The information step of converting, when corresponding IEC103 command message need be converted into the IEC61850 standards service, need only search relevant mapping table, find out corresponding service and the mapping relations of information point, be converted to the IEC61850 model, in order to carry out the mutual of information with a distant place 61850 equipment.
The invention has the beneficial effects as follows: the present invention is converted into 103 traditional mounted casts and meets the IEC61850 master pattern, 103 information points are converted to 61850 object indexings, 103 command messages are converted to corresponding abstract communication service, have solved how large quantities of microcomputer devices based on IEC 103 carry out compatible problem with 61850 systems in traditional transformer station.
Description of drawings
Fig. 1 a is the conceptual object oriented programming model of IEC61850 object oriented programming model;
Fig. 1 b is the object oriented programming model of the reality of IEC61850 object oriented programming model;
Fig. 2 is high voltage transmission line carrier current protection model.
Embodiment
Be that the invention will be further described for example below in conjunction with accompanying drawing with the LFP901A microcomputer protecting device.
Conversion method between a kind of two standards of transforming plant of the present invention comprises the object model of IEC 61850 and the information model of IEC103, and it may further comprise the steps:
Logical node and data object are carried out modeling; by each CPU modeling respectively; CPU comprises what a CPU1 formed; the one CPU1 is generally the main protection of device; the 2nd CPU2 is generally i.e. three stage phase spacing and the ground distance protections of backup protection, and the 3rd CPU3 is generally starting and the supervisor of handling GF global functions, in this step; comprise the defencive function modeling procedure, that is:
At first at a CPU1 who realizes the carrier current protection function, in IEC 61850, compliance logic node PSCH is used for switching motion information between a plurality of route protections, utilizes PSCH to cooperate the common carrier current protection system that constitutes with other protection logical nodes;
The 2nd CPU2 protects and the reclosing logic in support; adopt the alternate and ground distance protection of syllogic; alternate and each section ground connection all should be modeled as the example of distance protection logical node class PDIS; ground distance can increase prefix " Gnd " to distinguish before object name; and I, II, III section are with suffix sequence number " 1 ", " 2 ", " 3 " expansion; at last; the action command of each protection all exports protection trip condition logical node PTRC to, and finally sends tripping operation " Trip " order by it to circuit breaker XCBR.
Also comprise protection correlation function modeling procedure, that is:
At first, self-checking alarming information adopts general input and output logical node GGIO to represent;
Secondly, analog quantity sampling, the sampling of switching value sampling functional simulation amount are modeled as measuring unit logical node MMXU according to IEC 61850-7-4, and the switching value sampling adopts general purpose I/O logical node GGIO to describe;
Again, regard send function on the noisy data as a small-sized oscillograph as, utilize basic record ripple infologic node R DRE, and represent the logical node RADR of each analog quantity record ripple passage, the logical node RBDR that represents each switching value record ripple passage and join together to carry out modeling;
Then, fault localization namely has the fault localization function among the 3rd CPU3, and corresponding logical node is RFLO;
At last; to necessary two the logical node LPHD of each physical equipment and LLN0 modeling; in modeling, regard unit, an interval as a physical equipment; LPHD is used for describing Microcomputer Protection equipment place information at interval; LLN0 is used for describing the information of Microcomputer Protection equipment itself, to distinguish other protection equipment in the same interval.
Logical device is carried out modeling, is a logical device with a protection equipment modeling, and this step comprises creates mapping table step and information step of converting, wherein:
Create the mapping table step, adopt the mode of mapping table that IEC103 information point and corresponding IEC61850 object indexing are shone upon, adopt this mapping table that IEC103 is associated by dot information and the corresponding IEC61850 object that GROUP and Item determine, play one-to-one relationship, and adopt the mode of mapping table that IEC103 command message and IEC61850 ACSI service are shone upon, the command message of IEC103 can be converted to corresponding abstract Communications service interface by this mapping table;
The information step of converting, when corresponding IEC103 command message need be converted into the IEC61850 standards service, need only search relevant mapping table, find out corresponding service and the mapping relations of information point, be converted to the IEC61850 model, in order to carry out the mutual of information with a distant place 61850 equipment.
Seeing also Fig. 1 a, is the object model that IEC 61850 adopts layering, as seen from the figure, can comprise a plurality of logical device in the server; A logical device is made up of a plurality of logical nodes; A logical node comprises a plurality of data objects; A data object has a plurality of data attributes.Be example to use wider Nan Ruiji guarantor LFP-901A below, illustrate how existing protection equipment is carried out the object modeling,
One, the modeling first step: logical node and data object
It is logical node LN that IEC 61850 is decomposed into minimum entity with application function; and these information of protecting equipment to provide are at present disperseed; this just requires the designer to know Principles of Relay Protection and equipment theory of constitution, and closely-related information combination is formed LN together.Protection equipment generally all is made up of a plurality of function independent protection modules and CPU, in order to reduce the difficulty of Function Decomposition, and can be earlier by each CPU modeling respectively in modeling process.LFP-901A is made up of three CPU, and CPU1 is the main protection of device; CPU2 is backup protection (three stage phase spacing and ground distance protection); CPU3 mainly handles some GF global functions, as total starting, range finding etc. for starting and supervisor.
The defencive function modeling
At first consider CPU1.CPU1 realizes the carrier current protection function.Carrier current protection is to cooperate a kind of protection that realizes through hf channel with the corresponding protection of circuit offside.In IEC 61850, compliance logic node PSCH to constitute new protection scheme, jointly constitutes carrier current protection system so can utilize PSCH and other protection logical nodes to cooperate for switching motion information between a plurality of route protections.
The carrier current protection that two kinds of principles are arranged among the LFP-901A:
Quadrilateral characteristics distance relay and distance relay measured by variable of operating frequency are in conjunction with the vhf range protection that constitutes fast trip through the Channel Exchange signal, and this defencive function is realized jointly by two logical nodes of PDIS1-PSCH1;
The zero sequence power direction comparator relay is through the high frequency zero-sequenceprotection of Channel Exchange signal formation fast trip, and this function is realized jointly by two logical nodes of PIOC0-PSCH2.In IEC 61850, overcurrent protection is abstract to be two logical node class PIOC (instantaneous overcurrent protection) and PTOC (band time limit overcurrent protection).
CPU2 protects and the reclosing logic in support; adopt the alternate and ground distance protection of syllogic; alternate and each section ground connection all should be modeled as the example of distance protection logical node class PDIS; ground distance can increase prefix " Gnd " distinguishing before object name, and I, II, III section are with suffix sequence number " 1 ", " 2 ", " 3 " expansion.At last, the action command of each protection all exports protection trip condition logical node PTRC to, and finally sends tripping operation " Trip " order by it to circuit breaker XCBR.
The modeling of protection correlation function
Self check (alarm) information
Because the warning information that each producer provides often exists very big difference; there are some information to be included in the corresponding defencive function logical node; therefore; be difficult to also there is no need to represent warning information with a specific logical node, can adopt general input and output logical node GGIO to represent.
Analog quantity sampling (remote measurement), switching value sampling (remote signalling survey) functional simulation amount sampling (remote measurement) are modeled as measuring unit logical node MMXU according to IEC 61850-7-4.Switching value sampling (remote signalling survey) adopts general purpose I/O logical node GGIO to describe.
Noisy data
Send function to regard a small-sized oscillograph as on the noisy data, can utilize basic record ripple infologic node R DRE, and represent the logical node RADR of each analog quantity record ripple passage, the logical node RBDR that represents each switching value record ripple passage and join together to carry out modeling.
Fault localization
Have the fault localization function among the CPU3, corresponding logical node is RFLO.
Physical equipment
At last, be exactly that they are unique in an equipment to necessary two the logical node LPHD of each physical equipment and LLN0 modeling.In the transformer station of reality; each of high-tension line generally has two different protections at interval; therefore in modeling, regard unit, an interval as a physical equipment; LPHD is mainly used to describe Microcomputer Protection equipment place information at interval; and LLN0 is used for describing the information of Microcomputer Protection equipment itself, to distinguish other protection equipment in the same interval.
Two, second step of modeling: logical device
Generally not needing to handle the exchanges data between each CPU of protection device interior in modeling, can be a logical device with a protection equipment modeling in practice therefore.According to as above analyzing, the object model of ultra-high-tension power transmission line carrier current protection as shown in Figure 2.Note that the regulation according to UML, should underline to object name, to be different from class name.
Create mapping table:
Adopt the mode of mapping table that 103 information points and corresponding 61850 object indexings are shone upon, as shown in Figure 3.Adopt this mapping table that 103 dot information and the 61850 corresponding objects of determining by GROUP and Item are associated, play one-to-one relationship.
Adopt the mode of mapping table that 103 command messages and 61850 ACSI service are shone upon, as shown in Figure 4. 103 command message can be converted to corresponding abstract Communications service interface by this mapping table.
Information transforms:
When corresponding 103 command messages need be converted into 61850 standards service, need only search relevant mapping table, find out corresponding service and the mapping relations of information point, be converted to 61850 models, in order to carry out the mutual of information with a distant place 61850 equipment.
| 61850Ref | 103Group | 103I tem | desc |
| /LD1/GndPDIS1.GndStr | 3 | 1 | 1 section (alternate, ground connection) of distance |
| /LD1/GndPDIS2.GndStr | 3 | 2 | Ground distance II section |
| /LD1/GndPDIS3.GndStr | 3 | 3 | Ground distance III section |
| /LD1/GndPDIS4.GndStr | 3 | 4 | Phase spacing II section |
| /LD1/GndPDIS5.GndStr | 3 | 5 | Phase spacing III section |
Last table is IEC103 information point and IEC61850 object indexing mapping table, wherein:
The 61850Ref:61850 object indexing;
103Group:IEC-103 stipulations universal classification service group number;
103Item:IEC-103 stipulations universal classification service listings number;
Desc: corresponding group number, the information of entry number is described;
| The ASCI service | ASDU | 103Group | 103COT | Desc |
| RequestDataSetValues | ASDU10 | 4 | 42 | Call soft pressing plate |
| RequestDataSetValues | ASDU10 | 5 | 42 | The calling analog quantity |
| SetDataSetValues | ASDU10 | 4 | 40 | Soft pressing plate is moved back in throwing |
Last table is IEC103 ASDU command message and IEC61850 ACSI map of services table, wherein: the ACSI service: IEC-61850 ASCI service;
ASDU:IEC-103 stipulations Application service element type;
103Group:IEC-103 stipulations universal classification service group number;
103COT:IEC-103 information transmission reason;
The Desc:ASDU service describing.
Below the present invention of embodiment has been described in detail by reference to the accompanying drawings, and those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details among the embodiment should not constitute limitation of the invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (3)
1. the conversion method between the two standards of transforming plant comprises the object model of IEC61850 and the information model of IEC103, it is characterized in that it may further comprise the steps:
Logical node and data object are carried out modeling, and by each CPU modeling respectively, CPU is made up of a CPU1, the 2nd CPU2 and the 3rd CPU3;
Logical device is carried out modeling, is a logical device with a protection equipment modeling,
Described logical node and data object are carried out comprising the defencive function modeling procedure, that is: in the modeling procedure
At first at a CPU1 who realizes the carrier current protection function, in IEC61850, compliance logic node PSCH is used for switching motion information between a plurality of route protections, utilizes PSCH to cooperate the common carrier current protection system that constitutes with other protection logical nodes;
The 2nd CPU2 protects and the reclosing logic in support; adopt the alternate and ground distance protection of syllogic; alternate and each section ground connection all should be modeled as the example of distance protection logical node class PDIS; ground distance increases prefix " Gnd " to distinguish before object name; and I, II, III section are with suffix sequence number " 1 ", " 2 ", " 3 " expansion; at last; the action command of each protection all exports protection trip condition logical node PTRC to, and finally sends tripping operation " Trip " order by it to circuit breaker XCBR.
2. the conversion method between the two standards of transforming plant according to claim 1 is characterized in that, described logical node and data object is carried out in the modeling procedure, also comprises protection correlation function modeling procedure, that is:
At first, self-checking alarming information adopts general input and output logical node GGIO to represent;
Secondly, analog quantity sampling, the sampling of switching value sampling functional simulation amount are modeled as measuring unit logical node MMXU according to IEC61850-7-4, and the switching value sampling adopts general input and output logical node GGIO to describe;
Again, regard send function on the noisy data as a small-sized oscillograph as, utilize basic record ripple infologic node R DRE, and represent the logical node RADR of each analog quantity record ripple passage, the logical node RBDR that represents each switching value record ripple passage and join together to carry out modeling;
Then, fault localization namely has the fault localization function among the 3rd CPU3, and corresponding logical node is RFLO;
At last; to necessary two the logical node LPHD of each physical equipment and LLNO modeling; in modeling, regard unit, an interval as a physical equipment; LPHD is used for describing Microcomputer Protection equipment place information at interval; LLNO is used for describing the information of Microcomputer Protection equipment itself, to distinguish other protection equipment in the same interval.
3. the conversion method between the two standards of transforming plant according to claim 1 is characterized in that, describedly logical device is carried out modeling procedure comprise and create mapping table step and information step of converting, wherein:
Create the mapping table step, adopt the mode of mapping table that IEC103 information point and corresponding IEC61850 object indexing are shone upon, adopt this mapping table that IEC103 is associated by dot information and the corresponding IEC61850 object that GROUP and Item determine, play one-to-one relationship, and adopt the mode of mapping table that IEC103 command message and IEC61850ACSI service are shone upon, the command message that is about to IEC103 by this mapping table is converted to corresponding ACSI;
The information step of converting, when corresponding IEC103 command message need be converted into the IEC61850 standards service, need only search relevant mapping table, find out corresponding service and the mapping relations of information point, be converted to the IEC61850 model, in order to carry out the mutual of information with distant place IEC61850 equipment.
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|---|---|---|---|---|
| CN101694952B (en) * | 2009-09-28 | 2012-04-25 | 国电南京自动化股份有限公司 | Method for generating embedded telecontrol system definitions by IEC61850 SCD files |
| CN102123045A (en) * | 2011-01-18 | 2011-07-13 | 河南龙源许继科技发展股份有限公司 | Modeling method for high-voltage equipment on-line monitoring systems based on international electro-technical commission (IEC) 61850 |
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